- Rinse the filter paper with boiling water
- Use the water to pre-heat a blender and a 0.5 l vacuum flask
- Brew strong coffee from 500g water and 45g coffee (15s on my Bodum grinder) into the blender
- Add 25g black syrup
- Add 25g peanut butter
- Blend it thoroughly
- Pour into the vacuum flask
- Go kayaking
- Take a break
- Shake the vacuum flask
Maybe the syrup and nuts dosage can be increased. But if your are not enjoying a break from physical activity, drop the syrup.
Optional: If all guest tolerate lactose, add two teaspoons of whey protein powder.
Safety warning: When blending hot liquids, the air in the blender will expand violently.